Thank you, Curtis. Thank you, everyone, for joining us this afternoon for our first quarter 2021 earnings call. I hope you are all being safe and vaccinated in these pandemic times. At Arista, we are especially concerned by the heightened COVID crisis in India.
We are taking steps to assist our local teams as best we can and know. Back to Q1 2021 specifics, we delivered revenues of 667.6 million for the quarter, with a non-GAAP earnings per share of $2.50. A-Care services, EOS renewals, and subscription software contributed approximately 21.4% of the revenue.
Our non-GAAP gross margins at 64.7% was influenced by software and services mix, as well as higher enterprise, and Cloud Titan contributions for the quarter.
We continue to experience good customer traction and growth with new customer logos and increasing million dollar customers in the enterprises. In the quarter, Cloud Titans was our largest vertical; Enterprise was a close second, followed by financials and specialty cloud providers tied at third place, and service providers at fourth place. International contribution was 25%, and the Americas were at 75% in the quarter.
In terms of sector and product trends, we will report the specifics annually. They are consistent with the ranges we have already provided in our Investor Relations deck. To reiterate, our Cloud Titans are in the 35% to 39% range, the Enterprises are in the 35% to 39% range also, and the providers in the 25% to 30% range.
Our product line forecast annually is expected to be 60% to 65% for core data center, 10% to 15% for adjacent campus and routing, and 20% to 25% for software services. In light of the industry-wide chip and supply chain shortages, I'd like to shed more light on this topic, especially as it pertains to Arista.
First and foremost, we are pleased with the healthy demand we are experiencing and Arista is resonating well with customers and prospects as they are driving our multi-year growth projections. We share a preferred status with many of our top 100 and more customers and work intimately with them.
However, the supply chain has never been so constrained in Arista history. To put this in perspective, we now have to plan for many components with 52-week lead time. COVID has resulted in substrate and wafer shortages and reduced assembly capacity.
Our contract manufacturers have experienced significant volatility due to country specific COVID orders. Naturally, we're working more closely with our strategic suppliers to improve planning and delivery. Customer demand and visibility though has improved in the past few months.
We are working with our customers to understand the timing of their deployment needs. We do not believe at this time that our customers are pre-ordering.
However, we do think they’re exercising prudent planning for second half of 2021 and even into 2022. But this is a backdrop; we believe supply chain will remain a pain point for the balance of this year as a result of all these shortages. Therefore, Arista is taking decisive steps to invest and increase inventory and manufacturing capacity. I often ask my customers, especially risk averse enterprises, chose Arista. Arista’s recent enterprise momentum spans many vertical markets, and includes a suite of data center campus, routing, and software products.
Our customers are aligned with our software driven data centric approach to building their cloud architecture, their cloud operations, and their cloud experience. A key part of our enterprise traction is addressing the CIOs pain-points to build a cloud first, and a data driven network spanning client to cloud networking. Historically disparate functions and data sets into routers, security, switches, and network management functions can now be integrated by Arista into a seamless network architecture with programmability, state, and AI driven characteristics.
Let me try to illustrate a few enterprise examples to highlight this.
Our recent data center customer win was in the hospitality sector. They chose us because of our single EOS software image across multiple leaf and spine platforms. Using Cloud Vision for automation for zero touch provisioning, easy upgrades, telemetry and compliance was only feasible because of Arista. Arista’s [deep buffet] spine switches also enhanced their availability. A second example is in the international retail customer for data center and routing application. A million dollar customer, this was based on EVPN and VXLAN modern leaf spine design, and once again leveraged Cloud Vision and EOS for improved automation, programmability, and change control. NetOps vs DevOps automation with answerable integration was another key deliverable for their distribution center. A third to enterprise win was in campus in Europe. The 720XPs is differentiated as a POE platform with multi-gig capability across campus workspaces for both chassis and 1RU form factors. The 7050 CX spine and Spline brought low power, low footprint, and high density as an alternative to the chassis. The campus customer also implemented unified wired and WiFi cognitive capabilities and this played a key role. Migrating from manual operations, once again, Cloud Vision with streaming telemetry was a key factor. In all these three examples, there were some common themes. The customer was very fatigued with legacy issues and embraced our U.S. software and our Cloud Vision as key differentiators and advantages. They also have much confidence in Arista’s support, quality, and continued innovation. They embraced our strategy and build upon our differentiated state driven and programmable software foundation to deliver our cognitive five-A's of agility, availability, analytics, automation, and AI and API driven architectures. Switching to a popular Cloud Titans.
We are pleased to also state that we now see increased visibility across 10-gig, sorry, 100-gig, 200-gig and 400-gig demand from our Cloud Titan customers.
While this business can be volatile, we have enjoyed a preferred partnership status, with many of them deploying us in diverse used cases and deployment consistent with the overall CapEx reported recently. I'd like to invite Anshul, our Chief Operating Officer to elaborate more on this. Anshul?